机械5

剪叉式升降舞台液压系统设计 [摘要]近年来我国对液压升降舞台机械的制造设计及应用方面，虽然有了长足的提升，但是在舞台机械液压控制方面还有非常大的进步空间。我国与欧美等发达国家在这方面仍有较大的差距。剪叉式升降舞台是用于娱乐场所，突出歌唱者和表演者的动态效果，提高舞台动态档次，增加整体娱乐气氛的固定设备，因为它的剪叉机械结构使升降舞台的起升有较高的稳定性，也有较为宽大的表演平台和较高的承载能力，适合多人同时同台表演。它的安全更有保障。广泛应用于各表演现场，结婚现场及颁奖现常本次设计是参照固定式升降机设备进行设计。主要是针对剪叉式升降舞台的液压系统的部分进行设计与改善。首先对舞台的结构做了简要的建模与说明，接着分析舞台液压系统的基本参数，然后进行液压系统原理图的选择与设计，最好选择相符合的液压元件与验算系统性能。 [关键词]升降舞台；液压；剪叉式；升降机 Scissor lift stage hydraulic system desig
n [Abstract]I
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n?of?the?hydraulic?system?schematic?diagram?are?carried?out. [Keywords] Lifti
ng stage; Hydraulic pressure; Shear fork; elevator 目录 1引言1 2选题背景2 2.1目的和意义2 2.2国内外现状及发展趋势3 2.3设计要求4 3剪叉式升降舞台的结构6 4液压缸负载及工况分析8 4.1液压缸负载力分析和计算8 4.2液压缸速度循环分析8 4.3工况分析11 5系统图的拟定17 5.1液压系统原理图的确定17 5.2技术重点20 6液压缸的设计和计算21 6.1升降舞台液压传动的概述21 6.2原始数据的确定21 6.3缸体的结构设计及其计算23 7液压元件的选择27 7.1液压泵的选择27 7.2电动机的选择28 7.3液压阀的选择29 7.4管路的选择30 8液压系统性能的验算32 8.1压力损失验算32 8.2系统温升验算32 9总结34 参考文献35 致谢36